Jam-dolly.



PATENTED JUNE 1l, 1907.

J WEIMER J AM DOLLY.

APPLIOATION Hmm Nov 15 moa backs up may be properly operated upon.

UNrrED srarnsgrfarnnr ordnen.

JAMES VVEIMER, OF SWISSVALE, PENNSYLVANIA, ASSIGNOR OF ON E-IIALFA TO SANFORD R. OARSE, OF PITTSBURG, PENNSYLVANIA.

d A lVl DO L L Y No. 856,7 50. Specification of Letters Patent.

Application filed November 15, 1906. Serial No. 343,477.

Patented June 11, 1907.

To all whom t may con/cern:

Beit known that I, JAMES WmMnR, a citizen oi' the United States of America, residing at Swissvale, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Jam-Dollies, of which the following` is a specification, reference being had therein to the accompanying drawing.

This invention relates to jam dollies, and the invention has -for its primary object to provide an adjustable dolly.

My invention aims to provide a dolly having a novel form Cf supporting head, and an adjustable die. The supporting head is constructed whereby it may be placed over' a rivet head or similar protuberance in direct alinement with the rivet in connection with l which the dolly is to be used. The adjustable die permits of the dolly being lengthened or shortened according to the space in which it is to be used, the die being easily and quickly adjusted to accurately position the dolly in order that the rivet which it which my improved dolly is mounted, the dolly in the present instance being' supported by the rivets 2 of each set of beams.

The dolly comprises a cylindrical body portion 3 having a tapering shank 4 terminating in a bell-shaped end 5 which is cut away as at 6, whereby the end ot the dolly may be placed over the head ol one' of the rivets 2. The cylindrical body 3 at its opposite end is formed with a collar 7, and longitudinally of said body is 'lormed a bore S in which is mounted a die 9 having a socket-head l0.

The body 3 of the dolly is provided with diametrically opposed slots 1l intersecting the bore S, and in said slots slides a key 12, which passes through the end of the dic 9. The key l2 prevents the die vfrom becoming detached from the body 3, at the. same time permits of its adjustment within the bore S of said body.

To adjust the die within the body 3, I employ a wedge-shaped member 14, said member extending through the slots ll to the bore 8 and engaging the end ot the bore S and the end of the die 9. The wedge-shaped member 14 is provided with a head l5 and with a key or pin 16, whereby said member cannot become accidentally detached from the body of the dolly.

To this end, I have devised a dolly designed for riveters who have heretofore experienced considerable trouble in properly positioning the dolly and maintaining the same in alinement with the rivet to be operated upon. The construction oi' the dolly permits of the various parts thereof being readily renewed when worn, without discarding the entire dolly, therefore reducing the expense oi' maintenance; besides facilitating the work of riveters using' a dolly.

The detail construction oi' my improved dolly will be hereinafter more fully described and then speci'lically pointed out in the appended claims, and referring to the drawing forming part of this specification, like numerals of reference designate corresponding' parts throughout the several views, in whiehz Figure l is a side elevation of my improved dolly, Fig. 2 is a longitudinal sectional view of the same, Fig. 3 is a detail sectional view of the supporting end thereof, illustrating a slight modification, Fig. 4 is a similar View illustrating another modification, and Fig. 5 is a detail perspective view of a portion ot a dolly.

In the accompanying drawing', I have illustrated two sets of beams l, l between struction oi my improved dolly as just described, that the die 9 can be easily and quickly adjusted by simply tapping upon the head 15 of the member 14, with a hammer or suitable instrument. lVhcn the socket-head 10 and the bell-shaped end 5 engage the heads ot rivets, the dolly can be readily snpported therebetween by driving downwardly upon the member 14 until it has become iirmly wedged between the body of the dolly and the end of the die 9. In Figs. 3 and 4, I have illustrated slight modi'lications, wherein the shank 4L of the dolly is provided with detachable ends 17 and 1S, these ends being locked in engagement with the contracted end I9 of the shanks 4.- by bolts, keys or ins 20, The end 17 corresponds to the ellshaped end 5 previously described, and it is detachably mounted upon the shank 4 whereby it can be removed and the head 1S placed thereon which is simply a centering end adapted to engage in a beam and hold the dolly stationary while a rivet is being headed or operated upon.

It will be observed from the novel con- Hy invention particularly resides in a dolly having an adjustable die, thereby rendering it possible for the die or body of the dolly to be renewe'dvwithout dispensing with the entire dolly.

I desire it to be understood that such changes in the size, proportion, material and structural details, as are permissible by the appended claims, may be resorted to Without departing from the spirit and scope of the invention.

What I claim and desire to secure by Letters Patent, is

l. A dolly embodying a body portion having a shank terminating in a bell-shaped end, said end being cut away to permit of the dolly being placed in engagement with a rivet, a die slidably mounted in said dolly ,body and having a socket-head, a wedgeshaped member mounted between the end of said die and said dolly body for adjusting said die, means to retain said die within said dolly body, and means to retain said member within said body, substantially as described.

2. A dolly comprising a hollow body at one end and a head on the other end, the hollow portion of said body being slotted transversely, a die slidably-mounted in said hollow end of the body, a in extending transversely through the slot in the body of the die and holding the latter in the body, and a wedge extending through the slot in the body and engaging the inner end of the die, substantially as described.

In testimony whereof I aHiX my signature in the presence of two witnesses.

JAMES WEIMER.

Witnesses:

MAX H. SROLOVITZ, MARY E. LAWSON. 

